Changeable exhibitor.



G. R. HOLLINGSWORTH.

UHANGEABLE EXHIBITOR.

APPLIOATIOH TILED JULY 27, 1908.

Patented Sept 7, 1909.

3 SHEETS-SHEET 1.

awwutov G. R. HOLLINGSWORTH.

OHANGEABLE EXHIBITOR. APPLICATION FILED JULY 21. 1908.

933,075. Patented Sept. 7. 1909.

8 SHEETS-SHEET 2.

Auuitw. I, annual an, mumnmlna. wn lmm. I: C.

UNITED STATES PATENT OFFICE.

GEORGE E. HOLLINGSWORTH, OF CHICAGO, ILLINOIS.

CHANGEABLE EXHIBITOR.

Application filed July 27,

To all whom it may concern:

Be it known that I, GEORGE It. HOLLINGS- won'rn, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inChangeable Exhibitors, of which the following is a specification,reference being had to the accompal'iying drawings.

This invention relates to improvementsof construction and thecombination and arrangement of parts hereinafter fully described andclaimed, and illustrated in the accompanying drawings, in which Figure 1is a perspective View of the box or casin of the improved changeable exhibitor; ig. 2 is a detail plan view of certain of the sign plates andtheir guiding and operatin means; Fig. 3 is a detail vertical sectionti-rough the mechanism for actuat-- ing the sign plates; Fig. 4 is adetail view of the slidab'le actuating member; Fig. 5 is a detail viewof the lock or latch bar; and Fig. 6 is a diagrammatic view illustratingthe electric circuits. 1

The invention comprises asnitable box or, caslng 1 having a sightopening 2 in whichv plates. 3 may any one of a plurality of s' be"brought lnto view. ile said sign plates may be of any suitable form andconstruction, they are preferably made of sheet metal and are arrangedin parallel relation close to the sight opening 2 and are mounted forsliding movement in channeled guides 4 which receive their side edges.=To permiti any one of said plates to be raised to an opl erativeposition without interfering with to their retracted POSliZlOHS and theyare the others, each one. is provided atits top with a rearwardlyextending substantially U-shaped :loop or arm 5, as shown more' clearlin Fig. 2. Said loop-like arms are of di erent sizes and have theirforward: ends connected to the upper corners of-- the i plates-3," whilethe center of their-year or;

closed portions is-fixedjto rods ,6 which are Specification of LettersI'atent.

Patented Sept. 7, 1909.

1903. Serial No. 445,643.

means for operatively connecting any one of said sign plates to saidactuating member. In the preferred embodiment of the inventionillustrated, said member is in the form of a bar arranged at the top ofa frame 9 mounted for vertical sliding movement in suitable guides 10and shown more clearly in Fig. 4 of the drawings. Said frame ismaintained in its elevated or normal position by one or more coilsprings 11 and it is adapted to be depressed by the movement of the core12 of a solenoid or magnet 13. The core 12 is freely slidable in thecoil of the solenoid and is pivotally connected to the frame 9, as shownat 14.

Each of the sign plates 3 is provided with an operating lever 15 whichis fulcrumed intermediate its ends at 16 and has one end connected by alink 17 to the rod 6 of one of the sign plates. To the other end of eachof the levers 15 is pivoted the upper end of a controlling member or rod18, the lower end of which latter is loosely mounted for slidingmovement in a suitable guide 19 on a support 20 of fiber or othernon-conducting material. Each of the rods 18 has ivoted upon it, at 21,a dog 22 ada ted to e projected beneath and in the pat of the actuatingmember or bar 8 so that when the latter is depressed by the solenold therod 18 w ll be'moved downwardly and the lever 15 will be swun to elevatethe sign plate 3 which it contro s. To assist the solenoid in liftingthe si plate a coil s ring 23 is preferably provied for each 0 thelevers 15. Said s rings have their lower ends connected to tile leversand their upper ends connected to adjusting screws 24, as clearly shownin Fig. 3. The dogs 22 which are in the form of substantiallyrectangular plates pivoted at one of their corners are gravity actuatedable cores 27 of small solenoids or magnets 28 arranged on a bracket 29on the support 20. A spring 30 is provided for each of the actuatingarms or bell anks 25 for the purpose oi tilting them so tiat theirweighted lower ends wil drop into contact with the slid a blc cores ofthe solenoids 28. The secondary solenoids 28 and the primary solenoid13, as hereinafter e x'plalned, are'included in an electric circuitwhich, when closed, causes one of the Solenoids 28 and the solenoid 1.3to be energized so that the arm 25; of the energized solenoid 28 willproject its dog 22 into the path of the actuating member 8 so that whenthe core 12 of the solenoid 13 pulls the bar 8 downwardly the latterwill depress the rod 18 and lift'one of the sign plates 3.

In order to break such electric circuit and at the same time maintainthe actuated sign plate in an elevated and exposed position the lowerend of each of the rods 18 is adapted to depress a switch lever 31 andit is pro i' l lli i piteiee i or shoul r 32 t engage lock or latch barSaid latch bar 32-} is coln non to all. of the rods 18- and is pivpte dat 3 54 in suitable brackets 35 on the pp t l Proje ted by a c l sp indo arranged between the support 20 and an arm provided upon it so thatsaid latch bar normally projects into the path of the projections 32.Each of ttie latter is substantially y-shaped so that i s inclined orbeveled lower portion will swing the latch bar and pass the same as therod 18 moves downnardly in order that said latch bar may p ing fi er thflat p 1 e d o s ould th proj c ion 3 n h r by e ain h r d 8 in i er dsi and, c n eq e y 1 0 2 th g p i s levatedina all o f'the projections32 on the rods 18 are of th lie ize i w l be s en t efternii of the rods18 has been g ctuated and its proje tion .3 can t by he at h .33 and; oill be h d own y sa d at h n l the ass s ng m mber s ag in p ated to w rn her o e of th reds Tl ie lest ment n d e ii being depressed sen t poje io 2 t e tiiz t ti hi 33 so that e? the latter releases the rod 18already lowered at i -l s and reta n the red h h W t? la t lowe ed andwhi h nmat i f r lea the first mentioned rod. Each of t e syyitph er .1is pivot d i ter ediat ts nd at 37 on a bracket 38 on support 20 and hasone o ts rm or end disp sed in the P th i one o h Hide 1 and t othe e dp n.- ie iiirqiigh a sl t in the suppo t 3 nd conne ted to t e contestmember or stem 3 Qia oi Sw t h The .ette compr ses a m tal r 4 i9 arrnged HPQI it one sitt ng bracket and ennte aiiie'e l :"l stem or we .8Fran is H t-. the err 441 aiid it e d i adapted to i nle t the b tom qthe rep, wh rls are: terms tlieothei an:

tact member of the switch. The stem or member 35) contacts the cup ormember 40 lfienealh the surface of the oil so as to prevent sparliingand in order to prevent the upper portion of the stem 39 from contactingthe cup a sleeve 43 of non-crmducting material is arranged upon saidstem, as shown.

lhe several solenoids are controlled by nienns of a key-boa rdconsisting oi. a plurality of circuit closing switches or keys each ofwhich comprises a resilient inen'iber 45 provided with a finger pieceand haying one end fixed and its other end adapted to engage a contact41.0. The electrical. connections are clearly shown in Figs. 3 and 6 andcon' prise a eol'ldnctor 47 between each key 45 and one of the switchcups 40, a conductor 48'leading from each bracket 38 to one of thesolenoids 28, a conductor tit) extending from the solenoid 121 and havini a plurality of branches leading to the solenoids 28 and a conductor 50extending from the solenoid 13 to the contact strip 46' of the severalkeys of the switch board. Said conductor 50 is adapted to include asuitable electric generator but in the present embodiment of theinvention it contains a cut out switch 51 and is connected to the wires52 of an ordinary direct current electric lighting circuit of from 110to 125 volts. It Will be understood that the keybmll'fil may he located.at any point close to or distant from the casing 1 and that the(K'JllLlHCl'OLS 47 between the switch board and easing may be inclosedin a cable, as indiated at 3- Heying thus described the invention What iann d 1. The combination of a. plurality of movable signs, an actuatingmember, an independent operating device for each sign, each of saidoperating devices including a dog n gvable into and out of the path ofthe actuating member, electrically operated means for actuating saiddogs and means for operetipg said actuating member.

2, The combination of a. plurality of movable signs, an actuatingmember, electrically operated means for operating said member,

an ndependent opera-ting device for each of sa d s gns, each of saidoperatin devices ineluding a dog movable into an out of the path of theactuating member and means for Willimg said dogs.

The combination of a plurality of movabl S gn Hi wtueting member,independent operating devices for each of said signs, each of saidoperating devices-including a dog movable nto and out Qf the path of thee tgeing m mb r nd means for actuatin sei e fl- Th comb nation f aplurality of morelel s gns, as aetuetmg ember, independen ope atingdevices tnrea h .Qr sand signs me ns for eperet vely conne ting any oneo said operating devices to said actuating member and a detaining meansfor said operating devices.

5. The combination of a plurality of movable signs, an actuating member,independ ent operating devices for each of said signs, each of saiddevices including a dog movable into and out of the path of saidactuating member, independent actuating means for each of said dogs, anda detaining and releasing latch device to co-act with all of saidoperating devices.

6. The combination of a plurality of movable signs, an electricallyoperated actuating member, independent 0 eratin devices for each of saidsigns, e ectrica lly operated means for operatively connecting any oneof said devices to said actuating member, and a detaining and releasinglatch device to co'act with said sign actuating devices.

7 The combination of a plurality of movable signs, an actuating member,a primary solenoid for operating said member, independent operatindevices for each of said signs, each of said operating devices includinga dog movable into and out of the path of said actuating member, aplurality of secondary solenoids for actuating said dogs, a detainingand releasing latch device to coact with said sign actuating devices, akeyboard including a lurality of circuit closing keys, a lurality oinormally closed switches adapte to be opened by said sign operatingdevices and electric circuits including the primary and secondarysolenoids, said switches, and said circuit closing keys.

8. The combination of a plurality of slidable signs, independent leversfor actuating said signs, a slidable actuating member, controlling rodsslidably arran ed adjacent to said member and operativel y connected tosaid levers, dogs pivoted upon said controlling rods and adapted toswing into the path of the actuating member, swinging arms for operatingsaid dogs, solenoids for actuating said arms, a solenoid for operatingsaid actuating member and a detaining and releasing latich device toco-act with said controlling ro s.

9. The combination of a plurality of movable signs, an actuating member,controlling rods slidably arranged adjacent to the actuating member andadapted to operate said signs, dogs carried by said rods and adapted tomove into the path of said actuating member, latch projections upon saidrods having beveled faces and shoulders, a spring actuated and pivotallymounted latch bar to e0- act with said latch projections and means foroperating said dogs and said actuating member.

10. The combination of a plurality of movable signs, an actuating membera primary solenoid for operating said mem er, operating levers for saidsigns, controlling rods slidably mounted adjacent to said actuatingmember and operatively connected to said levers, dogs pivoted to thecontrolling rods and adapted to move into the path of the actuatingmember, a plurality of secondary solenoids for actuating said clogs,latch pro- 'ections upon said controlling rods, a latch ar pivotallymounted and spring actuated to co-act with said latch pro ections, aplurality of normally closed switches having actuating members arrangedin the path of sai d controlling rods, a key-board including a pluralityof circuit closing keys, and eleetric circuits including the primary andsecondary solenoids, said switches and said circuit closing keys,substantially as described.

11. In a device of the character described, the combination of aplurality of movable signs, independent moving means for each of thesigns, a common actuating means for all of the moving means, anelectrical device for operating said connnon actuating means,independent connecting means for each of the sign n'ioving means toopcrativ'ely con nect them to the common actuating means, electricaldevices for actuating said connecting means, a holding means formaintaining any one of the signs in ex osed position until another oneis actuate to such position, a plurality of normally closed switchesadapted to be opened by said sign moving means, a key-board including aplurality of circuit closing keys, and electric circuits including saidelectrical devices, said switches and said circuit closing keys.

12. In a device of the character described, the combination of aplurality of movable signs, independent actuating levers for said signs,a reciprocatory actuating member, controlling rods slidably arrangedadjacent to said member and operativel connected to said levers, a dogon each 0' said rods to connect the same to said member, independentoperating means for said dogs, a detaining and releasing latch device toco-act with said rods and means for operating said actuating member.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

GEORGE R. HOLLINGSWOR'IH.

Witnesses:

REINE BAER, JAN H. Din.

